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eyegriff Guest
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Posted: Sun Jul 03, 2005 7:10 am Post subject: my rca big screen tv |
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my rca big screen tv just sounds an alarm when plugged in..no picture
sounds like a fire alarm....
model no. is p60923bl |
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Al_Dodge_Bundy
Joined: 05 Apr 2005 Posts: 93 Location: Netherlands
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Posted: Sun Jul 03, 2005 12:37 pm Post subject: |
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Please check if there is a short in the high voltage circuit on the main pcb.
(probably a shorted high voltage driver-transitor)
You're primairy power supply will startup, detect a secundairy short, and shuts down again, then starts up again etc.. This could be the cause of the high pitching noise you hear!
Good luck,
Mark |
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mark
Joined: 20 Jan 2005 Posts: 43
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Posted: Thu Aug 18, 2005 10:33 pm Post subject: |
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if its a PTK195 check the horizontal output and if its bad replace it and the flyback. known issue with these rca sets. |
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Guest
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Posted: Sat Aug 20, 2005 3:40 am Post subject: Re: my rca big screen tv |
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eyegriff wrote: | my rca big screen tv just sounds an alarm when plugged in..no picture
sounds like a fire alarm....
model no. is p60923bl |
looks like EHT leakage from the distribution block or
deflection stage .check the B+ line
prakash |
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